The ornamental design for a displaypanel or portion thereof with graphical user interface, as shown and described.
FIG. 1 is a front view of a display panel or portion thereof with graphical user interface showing our new design; and,
FIG. 2 is a front view thereof, shown on a display device.
The dot-dash broken lines forming a rectangle in FIG. 1 illustrate a display panel or portion thereof and form no part of the claimed design. The dash-dash broken lines show portions of the graphical user interface that form no part of the claimed design. The dot-dash broken lines in FIG. 2 showing a display device illustrate a display device that forms no part of the claimed design.
The display panel may be a display screen or any other suitable display panel. The display panel may be used with an ultrasound probe.